EP 1355422 A3 20040721 - Input circuit of television tuner
Title (en)
Input circuit of television tuner
Title (de)
Eingangsschaltung eines Fernsehtuners
Title (fr)
Circuit d'entrée d'un circuit d'accord pour récepteur de télévision
Publication
Application
Priority
JP 2002114042 A 20020416
Abstract (en)
[origin: EP1355422A2] AVHF tuning circuit includes two tuning inductance devices connected in series with each other and having a junction thereof connected to an input terminal, and a first switch diode connected in parallel with the two inductance devices as a whole, and turned OFF at least when tuning is made with a low range of a VHF band. A UHF tuning circuit is connected to the input terminal through a second switch diode that is turned ON at least when television signals of a UHF band are received. The second switch diode is turned OFF when television signals of a low range of the VHF band are received. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H03J 5/244 (2013.01 - EP US)
Citation (search report)
- [XA] EP 0348697 A2 19900103 - TELEFUNKEN ELECTRONIC GMBH [DE]
- [PX] EP 1213837 A1 20020612 - ALPS ELECTRIC CO LTD [JP]
- [A] EP 1047192 A1 20001025 - SHARP KK [JP]
- [A] US 4710737 A 19871201 - MATSUTA SHIGETOSHI [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1355422 A2 20031022; EP 1355422 A3 20040721; EP 1355422 B1 20060802; DE 60307163 D1 20060914; DE 60307163 T2 20070726; JP 2003309455 A 20031031; JP 3944410 B2 20070711; US 2003193620 A1 20031016; US 7139039 B2 20061121
DOCDB simple family (application)
EP 03252382 A 20030415; DE 60307163 T 20030415; JP 2002114042 A 20020416; US 41386803 A 20030415